In an oxygen molecule, two atoms are united by

A. One bond

B. Two bonds

C. Three bonds

D. Four bonds

Answer: Option B

Solution(By Examveda Team)

Two oxygen atoms can both achieve stable structures by sharing two pairs of electrons as in the diagram. Two electrons of each of the atom in the oxygen molecule make the double bond with each other. The double bond is shown conventionally by two lines joining the atoms. Each line represents one pair of shared electrons.